rdlc data matrix

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NOTE Several international groups set the standards for cabling and networking in general Ready for alphabet soup At or near the top is the International Organization for Standardization (ISO), of whom the American National Standards Institute (ANSI) is both the official US representative and a major international player ANSI checks the standards and accredits other groups, such as the Telecommunications Industry Association (TIA) and the Electronic Industries Alliance (EIA) The TIA and EIA together set the standards for UTP cabling, among many other things UTP cables are rated to handle a certain frequency, such as 100 MHz or 1000 MHz, which originally translated as the maximum throughput for a cable Each cycle, each hertz basically, accounts for one bit of data For example, a 10 million cycle per second (10 MHz) cable could accommodate 10 million bits per second (10 Mbps) 1 bit per cycle The maximum amount of data that goes through the cable per second is called the bandwidth Through the use of bandwidth-efficient encoding schemes, however, manufacturers squeeze more bits into the same signal, as long as the cable can handle it Thus, the CAT 5e cable can handle throughput of up to 1000 Mbps, even though it s rated to handle a bandwidth of only up to 100 MHz EXAM TIP The CompTIA Network+ exam is only interested in CAT 3, CAT 5, CAT 5e, and CAT 6 Because most networks can run at speeds of up to 1000 MHz, most new cabling installations use Category 5e (CAT 5e) cabling, although a large number of installations use CAT 6 to future-proof the network CAT 5e cabling currently costs much less than CAT 6, although as CAT 6 gains in popularity, it s slowly dropping in price NOTE If you have a need for speed, the latest update to the venerable UTP cable is Category 6a This update doubles the bandwidth of CAT 6 to 550 MHz to accommodate 10-Gbps speeds up to 100 meters Take that fiber! (The 100-meter limitation, by the way, refers to the Ethernet standard, the major implementation of UTP in the networking world 4 covers Ethernet in great detail).

wwwciscocom/go/4000

As in the calculus of real variables, we can split up an interval a t b Suppose that a < c < b Then we can write

Stranded Core A cable that uses a bundle of tiny wire strands to transmit signals Stranded core is not quite as good a conductor as solid core, but it will stand up to substantial handling without breaking Stream Cipher An encryption method that encrypts a single bit at a time Popular when data comes in long streams (such as with older wireless networks or cell phones) Stripe Set Two or more drives in a group that are used for a striped volume

up to 96 10/100 Fast Ethernet or up to 36 Gigabit Ethernet 5000 Large offices None 2, 5, 9, or 13 (depending on model) Supports up to 384 user ports; high performance; high density; full system redundancy Layer-3 services such as QoS, security, and traffic management wwwciscocom/go/5000

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Structured Cabling Standards defined by the Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA) that define methods of organizing the cables in a network for ease of repair and replacement STS Overhead Carries the signaling and protocol information in Synchronous Transport Signal (STS) STS Payload Subnet Carries data in STS

Large offices with Ethernet backbones and server aggregation environments requiring very high densities of Fast or Gigabit Ethernet

Subnet Mask The value used in TCP/IP settings to divide the IP address of a host into its component parts: network ID and host ID Subnetting Taking a single class of IP addresses and chopping it into multiple smaller groups Supplicant A client computer in a RADIUS network Switch A device that filters and forwards traffic based on some criteria A bridge and a router are both examples of switches Symmetric DSL (SDSL) Type of DSL connection that provides equal upload and download speed and, in theory, provides speeds up to 15 Mbps, although the vast majority of ISPs provide packages ranging from 192 Kbps to 9 Mbps Symmetric-Key Algorithm both encryption and decryption Any encryption method that uses the same key for

Exchanging the limits of integration introduces a minus sign:

6- and 9slot versions; support for up to 384 10/100 Ethernet, 192 100FX Fast Ethernet, and up to 130 Gigabit Ethernet ports 5 13 modular slots

Synchronous Describes a connection between two electronic devices where neither must acknowledge (ACK) when receiving data Synchronous Digital Hierarchy (SDH) equivalent to SONET Synchronous Optical Network (SONET) European fiber carrier standard American fiber carrier standard

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Synchronous Transport Signal (STS) Signal method used by SONET It consists of the STS payload and the STS overhead A number is appended to the end of STS to designate signal speed System Log Log file that records issues dealing with the overall system, such as system services, device drivers, or configuration changes System Restore A Windows utility that enables you to return your PC to a recent working configuration when something goes wrong System Restore returns your computer s system settings to the way they were the last time you remember your system working correctly all without affecting your personal files or e-mail T1 A leased-line connection capable of carrying data at 1,544,000 bps T1 Line The specific, shielded, two-pair cabling that connects the two ends of a T1 connection T3 Line A leased-line connection capable of carrying data at 44,736,000 bps

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